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Hi eveybody. I've seen posted before the same question, but no answer. Is there anybody who has implemented the Hosmer-Lemeshow test in R? TIA, Stefano -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the

Hi, I am new to R. Anyone can explain the following from R-help or anyone can direct me how to calculate odds ratio from logistic model in R. Thank you very much. Guoya Stefano <stecalza at tiscalinet.it <https://stat.ethz.ch/mailman/listinfo/r-help> > writes: >Hi all. > >A simple question. >Is there a function to compute the Odds Ratio and its confidence intervall, from >a logistic model (glm(.......,family=binomial....). I've written my own, but &gt...

Hi all, if I do, options(error=dump.frames) (pag. 185 S-programming) I get an error message: error parameter invalid. Where I'm doing wrong? I use R 1.0.1 on a Linux box (redhat 6.2). Thanks, Stefano. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info",

Hi all. A simple question. Is there a function to compute the Odds Ratio and its confidence intervall, from a logistic model (glm(.......,family=binomial....). I've written my own, but certainly someone did a better job. Thank you in advance, Stefano *********************************************** Stefano Calza Istituto di Statistica Medica e Biometria Universit? degli Studi di Milano Via

Hi. I've a dataframe with about 46000 women with about 500 cases (cancers). I want to define a case-cohort sampling scheme, matching by age and hospital centre. Is there anyone who has already written a code for that? It should be something similar to the stcacoh macro in Stata. TIA, Stefano -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list

Hi all. I may missing something here, but if I do summary.default(1:9999), I get: Min. 1st Qu. Median Mean 3rd Qu. Max. 1 2500 5000 5000 7500 9999 but if I do summary.default(1:10001) I get: Min. 1st Qu. Median Mean 3rd Qu. Max. 1 2501 5001 5001 7501 10000 i.e. Max is rounded to 10000. What's wrong? My system:

Hi all. I'm trying to install the packages Rstreams and RPgSQL, but with no success. I did R INSTALL name package but if I try library(Rstreams) I get the following error: Error in library.dynam("Rstreams",pkg,lib): dynamic library 'Rstreams' not found Error in library(Rstreams): .First.lib failed Where did I go wrong? I'm using R 1-1-1 on a Debian GNU/Linux box.

Hi all. 1) If I have a dataframe with variable names as follow: PC1 PC2 ... PCn and I want to pass only some of them to a function, e.g. glm(resp~from PC1 to PC10, PC15, etc.,...) is there a faster way than simply writing each variable name in the formula? 2) Again, I have a dataframe, say ali.df, with tha following variables: ali1, ali2, ...ali78 I want to sum, for example, ali1+al2+ali7+f rom

Hi All, I have a very simple problem. I have several files in a same directory. I would like to send for an object only the files that finish in ".sens.". I execute the command below, files <- dir(pattern="*.sens") but it includes all of the files that have "sens", independent of they be in the end or in the middle of the name of the file. How could I solve

Hi, is there a function/library like print.display by F.Harrel for R? BTW Harrel clearly states in the reame that "you may not port the library to R" ... Thanks, Stefano. -- *********************************************** Stefano Calza Istituto di Statistica Medica e Biometria Universit? degli Studi di Milano Via G. Venezian, 1 20133 Milano tel. +39 02/2361302, 02/70600908 fax

Hi all. I'm "trying" to install R on a linux box (mandrake 7.1) but when I do make install it stops with the following errors: /usr/bin/install: zero.so: File doesn't exist (translated fron italian!!) make[2]: *** [install-objects] Error 1 make[2]: *** [install] Error 2 make: *** [install] Error 1 Where I'm wrong? The only change I've done is ./configure

>MJ Ray <mjr at stats.mth.uea.ac.uk> writes: > >> Griffith Feeney <gfeeney at hawaii.edu> writes: >> > I couldn't get 'apt-get install r-base' to work at step 2: it installs the >> > older version of R rather than 1.1.1 and complains incessantly about not >> > being able to stat source package list. This apt-get command did result in

Dear all, how can I get the R-squared of the sequence of models fitted by step(....,direction="forward")? TIA, Stefano ******************************* Stefano Calza Istituto di Statistica Medica e Biometria Universit? degli Studi di Milano Via G. Venezian, 1 20133 Milano tel. +39 02/2361302, 02/70600908 fax 02/2362930

Hi all. I'm wondering why there isn't yet the debian version of R 1.2.3. Am I missing something? TIA, Stefano ******************************* Stefano Calza Istituto di Statistica Medica e Biometria Universit? degli Studi di Milano Via G. Venezian, 1 20133 Milano tel. +39 02/2361302, 02/70600908 fax 02/2362930

Hi everybody. I'm studying the Harrell's book on regression modeling strategies, and I'd like to replicate the examples using R (instead of S+). So how's going the porting of the hmisc and design libraries? Are there available, though in beta version? TIA, Stefano Calza -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

Hi. I have the following problem. I use by() to compute a table of observed and expected counts of a variable (eg sobjects who belong to a smoking category) within combination of 4 factors (age class, education, sex, region) for a total 4*3*2*5 tables. I get a list of length 120 and dim 4. Noww I want to sum the tables within the level of one of the grouping variables, eg age class. How can I

Hi all. I'm compiling the devel version of R on Debian GNU/Linux, and installing it into /usr/local tree (instead of default /usr). So: ./configure --prefix=/usr/local/ make make install Everything works fine, but when I start R I get the following error messages (traslated from italian, sorry): Error in dyn.load(x,as.logical(local),as.logical(now)): impossible to load the shared

Dear all, I'm working with R 1.2.2 on win98 (256Mb RAM) with ESS 5.1.18. It happens that the start-up is very slow. I don't know exactly how to measure, but with a simple watch I recorded 15 seconds, while the startup of S+ 2000 (Sqpe+4 under ESS) takes around 3 seconds. Tha fact is that sometimes it takes almost a minute (58.30 sec recorded) for the prompt to appear! And ESS gives me an

Hi everybody. I know, I'm too lazy, but I was wondering when the binary for Linux/Debian Woody will be available. I could find only the version for unstable (Sid). TIA, Stefano -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or

Hi all. I'm trying to see how the package Rodbc works, with R 1.2.2, win98 and MySql 3.23. I'd like to export a dataset with 524 variables and 3440 records form R to MySql. I issued the following commands: library(RODBC) channel <- odbcConnect("test") sqlSave(channel,dat=totale) Error in sqlTables(channel)[, 3] : incorrect number of dimensions Actually it gave me other